title: On the use of chi 2 tests for nested categorized data.
authors.affiliation: Université Paris, V.
authors.forename: B
authors.initials: B
authors.lastname: Prum
authors.forename: M
authors.initials: M
authors.lastname: Guilloud-Bataille
authors.forename: F
authors.initials: F
authors.lastname: Clerget-Darpoux
mesh_terms: D016009:Chi-Square Distribution; D005838:Genotype; D006801:Humans; D008957:Models, Genetic